【摘 要】
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Rational design and precise regulation over the morphology,structure,and pore size of functional con-ducting mesoporous polymers with enriched active sites and shorten electron-ion transport pathway are extremely important for developing high-performance
【机 构】
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State Key Laboratory of Precision Spectroscopy and Department of Materials,School of Physics and Ele
论文部分内容阅读
Rational design and precise regulation over the morphology,structure,and pore size of functional con-ducting mesoporous polymers with enriched active sites and shorten electron-ion transport pathway are extremely important for developing high-performance micro-supercapacitors(MSCs),but still remain a great challenge.Herein,a general dual-colloid interface co-assembly strategy is proposed to fabricate hollow mesoporous polypyrrole nano-bowls(mPPy-nbs)for high-energy-density solid-state planar MSCs.By simply adjusting the size of block copolymer micelles,the diameter of polystyrene nanospheres and the amount of pyrrole monomer,mesopore size of the shell,void and shell thickness of mPPy-nbs can be simultaneously controlled.Importantly,this strategy can be further utilized to synthesize other hollow mesoporous polymers,including poly(tris(4-aminophenyl)amine),poly(l,3,5-triaminobenzene)and their copolymers,demonstrative of excellent universality.The structurally optimized mPPy-nb exhibits high specific surface area of 122 m2 g-1and large capacitance of 225 F g-1 at 1 mV s-1.Furthermore,the MSCs assembled by mPPy-nbs deliver impressive volumetric capacitance of 90 F cm-3 and energy density of 2.0 mWh cm-3,superior to the most reported polymers-based MSCs.Also,the fabricated MSCs present excellent flexibility with almost no capacitance decay under varying bending states,and robust serial/-parallel self-integration for boosting voltage and capacitance output.Therefore,this work will inspire the new design of mesoporous conducting polymer materials toward high-performance microscale supercapacitive devices.
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